VQ2001P MOSFET Equivalent & Substitute Parts

Part Overview

The VQ2001P is a 4-channel P-channel MOSFET array manufactured by Vishay Siliconix, rated for 30V drain-to-source voltage and 600mA continuous drain current in a 14-DIP package. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity. Substitute parts must maintain compatibility with existing circuit designs while meeting the electrical and mechanical specifications of the original component.

Substiute Parts

VQ2001P

Vishay SiliconixIn Stock: 1717VQ2001P Datasheet

Current PartRFQ

ALD1107PBL

Advanced Linear Devices Inc.In Stock: 933ALD1107PBL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution analysis for the VQ2001P is based on the following critical electrical and mechanical parameters:

Configuration Match: Both the main part and substitute must feature 4 P-channel MOSFET configuration in a 14-DIP package to ensure pin-compatible board-level integration.

Voltage Rating: The substitute part must support the maximum drain-to-source voltage required by the application circuit. The VQ2001P operates at 30V Vdss; substitute parts with lower voltage ratings (such as 10.6V) are suitable only for applications operating below the substitute's maximum rating.

Current Handling: Continuous drain current capacity must meet or exceed the application requirement. The VQ2001P provides 600mA; substitutes with lower current ratings require circuit redesign or parallel device configuration.

On-Resistance and Thermal Performance: The Rds On value directly affects power dissipation and thermal management. Lower Rds On values reduce heat generation; higher values increase dissipation and may require thermal design modifications.

Temperature Range: Operating temperature specifications must encompass the application's thermal environment. The VQ2001P supports -55°C to 150°C; substitutes with narrower ranges may not be suitable for extended temperature applications.

Compliance Status: Product status (active vs. obsolete) and RoHS compliance determine long-term availability and regulatory suitability for new designs.

Parameter Comparison

Engineering Selection Recommendations

VQ2001P Continued Use: The VQ2001P remains suitable for applications where component availability from existing inventory is sufficient and regulatory compliance with RoHS standards is not mandated. Obsolete status indicates no new production; selection of this part is limited to stock depletion scenarios.

ALD1107PBL Substitution Constraints: The ALD1107PBL is an active, ROHS3-compliant alternative; however, significant electrical parameter differences restrict its application scope. The 10.6V Vdss rating is substantially lower than the VQ2001P's 30V specification, limiting use to circuits operating at reduced voltage levels. The 1800Ω on-resistance is significantly higher than the VQ2001P's 2Ω specification, resulting in substantially increased power dissipation and thermal load. The 500mW maximum power rating is one-quarter that of the VQ2001P, further constraining thermal headroom. The operating temperature range of 0°C to 70°C is narrower than the VQ2001P's -55°C to 150°C range, excluding extended-temperature applications.

Application-Specific Evaluation: Direct substitution of ALD1107PBL for VQ2001P is not universally applicable. Substitution is permissible only when all of the following conditions are met: (1) circuit voltage does not exceed 10.6V, (2) continuous drain current requirement does not exceed the ALD1107PBL's undocumented current rating, (3) total power dissipation remains below 500mW per channel, and (4) operating temperature remains within 0°C to 70°C. Designs requiring the full 30V rating, 600mA current capacity, 2W power dissipation, or extended temperature operation cannot use the ALD1107PBL as a direct replacement.

Frequently Asked Questions (FAQ)

Q: Can the ALD1107PBL directly replace the VQ2001P in existing designs?

A: Direct replacement is not universally applicable. The ALD1107PBL has significantly different electrical specifications. Substitution is permissible only when the application operates within the ALD1107PBL's voltage (10.6V maximum), power (500mW maximum), and temperature (0°C to 70°C) limits. Designs utilizing the VQ2001P's full 30V rating or 600mA current capacity require alternative solutions.

Q: What is the primary limitation of the ALD1107PBL as a substitute?

A: The ALD1107PBL's 10.6V drain-to-source voltage rating is substantially lower than the VQ2001P's 30V specification. This voltage limitation is the primary constraint on substitution eligibility. Additionally, the 1800Ω on-resistance generates significantly higher power dissipation compared to the VQ2001P's 2Ω specification.

Q: Are the 14-DIP packages mechanically compatible?

A: Both devices use 14-DIP packaging with 0.300" (7.62mm) pitch, ensuring mechanical and pin-level compatibility at the board level. However, mechanical compatibility does not guarantee electrical compatibility; voltage, current, and power specifications must be independently verified.

Q: What is the RoHS compliance status of each part?

A: The VQ2001P is RoHS non-compliant. The ALD1107PBL is ROHS3 compliant. For applications subject to RoHS regulations, the ALD1107PBL is the compliant option, provided electrical specifications meet application requirements.

Q: Can multiple ALD1107PBL devices be paralleled to achieve higher current capacity?

A: Parallel configuration of MOSFETs requires careful circuit design to ensure balanced current distribution and thermal management. Paralleling is not addressed in the provided specifications and requires independent circuit analysis.

Q: What is the temperature operating range difference between these parts?

A: The VQ2001P operates from -55°C to 150°C (TJ), supporting extended-temperature applications. The ALD1107PBL operates from 0°C to 70°C (TJ), limiting use to standard industrial and commercial temperature ranges. Applications requiring operation below 0°C or above 70°C cannot use the ALD1107PBL.

Q: Is the ALD1107PBL's "Matched Pair" configuration significant for substitution?

A: The matched-pair configuration indicates internal device matching characteristics, typically beneficial for precision analog applications. This feature does not affect basic substitution eligibility but may provide performance advantages in specific circuit topologies.